Jan 6, 2011 - The U.S. Food and Drug Administration announced today that certain tobacco products, including cigarettes, roll-your-own tobacco, and all smokeless products, introduced or changed in the United States after Feb. 15, 2007, must be reviewed by the agency. In its newly published guidance, the agency says that any company marketing a tobacco product must prove that the product is "substantially equivalent" to products commercially available on Feb. 15, 2007.